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254SMO Precision Tubes|Super Austenitic 254SMO Precision Tubes

Super Austenitic 254SMO precision tube is a highly corrosion-resistant special stainless steel alloy known for its excellent corrosion resistance, particularly in corrosive environments and high-temperature applications.

Description

1. Basic Introduction of Super Austenitic 254SMO Precision Tubes:

   - Super Austenitic 254SMO is a highly corrosion-resistant special stainless steel alloy known for its excellent corrosion resistance, particularly in corrosive environments and high-temperature applications.

   - The 254SMO alloy is primarily composed of iron (Fe) and contains chromium (Cr), nickel (Ni), molybdenum (Mo), copper (Cu), and nitrogen (N) among other elements to enhance its corrosion resistance.

2. Common Specifications of Super Austenitic 254SMO Precision Tubes:

   - Outer Diameter Range: 3mm - 219mm

   - Wall Thickness Range: 0.5mm - 20mm

   - Length: Typically 6 meters, but can also be customized according to customer requirements.

3. Corresponding Grades for Super Austenitic 254SMO Precision Tubes:

   - UNS S31254

   - W.Nr. 1.4547

   - ASTM A312 TP254 SMO

   - EN 1.4547

4. Chemical Composition of Super Austenitic 254SMO Precision Tubes:

Element

Content (%)

Iron (Fe)

Balance

Chromium (Cr)

20.0 - 21.0

Nickel (Ni)

17.5 - 18.5

Molybdenum (Mo)

6.0 - 6.5

Copper (Cu)

0.5 - 1.0

Nitrogen (N)

0.18 - 0.22

Manganese (Mn)

1.00

Silicon (Si)

0.80

Sulfur (S)

0.010

Phosphorus (P)

0.030

5. Mechanical and Physical Properties of Super Austenitic 254SMO Precision Tubes:

Property

Typical Value

Density (g/cm³)

8

Youngs Modulus (GPa)

195

Yield Strength (MPa)

300

Tensile Strength (MPa)

650

Elongation (%)

35

Hardness (Brinell)

270

Thermal Expansion (20-100°C)

16.5 x 10^-6 /°C

6. Relevant Production Standards for Super Austenitic 254SMO Precision Tubes:

   - ASTM A312 / A312M - Standard specification for seamless, welded, cold drawn, and cold-rolled precision tubes made of stainless steel.

   - ASTM A269 / A269M - Standard specification for general service seamless and welded stainless steel precision tubes.

   - EN 10216-5 - European standard for technical delivery conditions of stainless steel precision tubes.

7. Key Characteristics of Super Austenitic 254SMO Precision Tubes:

   - Excellent corrosion resistance, particularly in acidic and chloride-rich environments.

   - Combines high-temperature strength with corrosion resistance, making it suitable for high-temperature and corrosive atmospheres.

   - Exceptional resistance to stress corrosion cracking, suitable for high-pressure equipment.

   - Easy to machine and weld with good workability.

8. Applications of Super Austenitic 254SMO Precision Tubes:

   - Chemical Industry: Used for handling corrosive media containing chlorides such as sodium chloride, sulfuric acid, etc.

   - Marine Engineering: Suitable for seawater coolers, seawater desalination equipment, etc.

   - Oil and Gas Industry: Used in subsea pipelines, offshore platforms, and petroleum processing equipment.

   - Food Processing: Suitable for food processing equipment as it does not adversely affect food.

   - Pharmaceutical Industry: Used in pharmaceutical equipment that requires high hygiene and corrosion resistance.

Super Austenitic 254SMO Precision Tubes

Super Austenitic 254SMO Precision Tubes

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